For the curve defined by and

MATHEMATICS · Single correct · A Level · Mathematics · Differentiation · Differentiation

Problem

For the curve defined by

x=t^{2}-4t

and

y=t^{3}-3t

, let

L_1

be the tangent line at

t=1

. For which of the following values of

t

(

t\ne 1

) is the tangent line

L_2

parallel to

L_1

? (a)

0

(b)

2

(c)

-1

(d)

3

Related theory

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